Sounds that Your Air Conditioner is Failing

During the brutal Texas summer months, the last thing you need is walking into your home and finding out your air conditioning isn’t working. Before your AC fails, pay attention to the sounds and signs that it is giving you.

Some noises coming from your AC unit are a normal part of a machine functioning. However, there are key sounds that you should listen for that can indicate an issue that can lead to a broken air conditioner that is costly to fix or beyond repair.

Clanking & Banging

These loud clanking and banging sounds are usually a sign of a problem with the blower assembly or motor. A rattling sound typically indicates that a piece within the AC unit is loose or disconnected. You should seek the help of an HVAC professional to prevent the piece from completely coming loose and causing expensive damages. If you hear a loud banging sound, a piece has likely disconnected and will need to be seen as soon as possible.

Hitting Sound

A loud hitting or smacking sound coming from your AC unit when the blower is on is a sign that something may be stuck to one of the blades. If there is nothing attached to the blades, there may be something in the structure of the unit making contact with the blades as they spin.

Clicking Sound

While a clicking sound is normal and expected when you are turning the AC unit on and off, a consistent clicking sound while the unit is in use may be due to a defective relay.

Rattling from outside compressor and fan unit

When the fan turns on in your compressor unit, it should not rattle. These sounds may be an indication of loose hardware or a failing motor. The louder the sound, the more serious the problem can be.

If the noise is similar to a scream, your compressor may be failing. Humming noises can indicate the starting capacitor is starting to fail or a bad motor. A squeal when the unit first starts is often normal.

Listening to your AC unit is essential to making sure that it is working properly and keeping your home cool. Air Bourne Air Conditioning serves Houston, Ft. Bend, and the surrounding areas. No matter what your AC maintenance and repair needs are, our HVAC contractors are always ready and happy to help.